. >> i think it goes back to the type of hiring they did, the educational requirements that they were allowed to put in place, which were not high enough, in my view. >> reporter: now, as for that officer that led a firefighter carry a gun right through security, tsa says the person responsible has been pulled from duty this week with possibly more disciplinary action to come. david? >> mark greenblatt tonight, thank you. >>> from tsa agents under fire to the border patrol agent now under investigation by the fbi tonight. the agent shot and killed a mother of five while she was in the driver's seat of her car and this evening there are two very different accounts of what happened just before that shooting. here's abc's reena ninan now. >> reporter: a makeshift memorial to honor a mother of five who family and friends say shouldn't have died at the hands of a u.s. border agent. >> i think we're all shocked. we want answers. >> we just want justice, that's it. >> reporter: there are varying accounts of how valeria alvarado was killed during a confrontation with a plainclothes agent serv